Current penetration versus frequency

Comparison takes place for both of prefabricated and our new proposed device. As if you increase f, and keep the other variables constant, the penetration depth decreases. On the other hand, when the external component of the inductance is magnified due to the geometry of a coil due to the mutual inductance between the turnsthe significance of the internal inductance component is even further dwarfed and is ignored. The imaginary part of the exponent indicates that the phase of the current density is delayed 1 radian for each skin depth of penetration. This formula for the increase in AC resistance is accurate only for an isolated wire.

The shorter path at the inner surface results in a lower resistance, which causes most of the current to be concentrated close to the inner bend surface. Penetration depth more commonly known as skin depth is greater at low frequency, conductivity, and permeability. On the other hand, when the external component of the inductance is magnified due to the geometry of a coil due to the mutual inductance between the turnsthe significance of the internal inductance component is even further dwarfed and is ignored. Hamed Ghodsi Hassan Kaatuzian. AZoM talks for Dr. Khaje Nasir Toosi University of Technology. Eddy currents are more concentrated at the surface and decrease in intensity with distance below the surface of the metal.